基于TM影像的万州主城区崩塌地质灾害研究

A Study on the Rockslide for Wanzhou Main City Zone Based on Remote Sensing

根据万州区独特的自然地理特征,通过对TM卫星影像的主成分分析,结合GIS技术,在TM影像上识别出了万州崩塌地质灾害发生的主要地带,即遂宁组和沙溪庙组地层的分界线附近,沙溪庙组地层形成的陡崖上.从宏观上揭示了崩塌地质灾害的空间分布规律,为万州国民经济和人民生活建设提供了重要参考。

This paper discussed mainly the rockslide of Wanzhou which is a upland city in the reservoir of Three Gorges. By analyzing TM remote sensing image with the method of principal component analysis and combining GIS technology, we found that the place where rockslide was taken place all focus on the strata nearby the borderline between J\-2s and J\-3s. Obviously, this hazard must be highly related to the strata. So the regulation of distribute for rockslide hazard is clear.